Automatic weighing-machine.



Patented Sept. ll, I900.

D. S. COOK.

AUTOMATIC WEIGHING MACHINE.

(Application filed Aug. 10, 1898.)

3 Shbets-$heet 1,

(No Model.)

No. 657,856. Patented Sept. n, I900.

n. S. BOOK.

AUTOMATIC WEIGHINGMAGHINE.

(Application filed Aug. 10, 1898.) (No Model.) ets--Sh0\2t 2.

'IIIIIIIIIIIIIIIIIIIIIIIIIIIIII No. 657,856. Patented Sept. "Q1900. n.s. COOK. AUTOMATIC WEIGHING MACHINE.

(Application filed Aug. 10, 1898.)

(No Model.) 3 Sheets-Sheet 3.

W/T/YfS 6219. g; //y//[ 7'y/a @MILGMJW PH? 6% gm m g (J. a. aim.

THE NORRIS PETERS co, momma. WASHINDTON, u c.

UNITED STATES PATENT OFFICE.

DAVID S. OOOK, OF SELLERSBURG, INDIANA.

AUTOMATIC WEIGHING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 657,856, datedSeptember 11, 1900.

Application filed August 10, 1898. Serial No. 688,264. (No model.)

To all whom it may concern.-

Be it known that I, DAVID S. COOK, a citizen of the United States, and aresident of Sellersburg, in the county of Clark and State of Indiana,have invented certain new and useful Improvements in Automatic Weighingand Packing Machines; and I do declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, and to lettersand figures of reference marked thereon, which form a part of thisspecification.

My invention has relation to certain new and useful i m provements inautomatic weighing and packing machines; and its object is to provideautomatic means of simple character for weighing the product of mills,&c., during the process of manufacture or dis charge.

With this object in view the invention consists in the novelconstruction and combination of parts, all as hereinafter described, andpointed out in the appended claim.

In the accompanying drawings, Figure 1 is afront elevation, partly insection, of the complete machine. Fig. 2 is a front elevation of thereceiving-hopper ona larger scale. Fig. 3 is a vertical section of thesame. Fig. i is a front View of one of the weigh-boxes and its automatictrip. Fig. 5 is a side view of the same with the casing in section.

4 Referring to the drawings, the numeral 13 designates areceiving-hopper, into which the material to be weighed and packaged isdischarged or delivered from a mill or other source. Said hopper isconstructed with a branched or double discharge 19 19, one branch or legbeing arranged to discharge into a receptacle or weigh-box 2 and theother branch or leg into a second and similar receptacle or weigh box 2.Pivoted within the hopper upon centers 17, supported in brackets 18,secured to the outside of the hopper, is a valve-plate 15, upon whichthe material delivered into the hopper falls and is thereby directedinto one or the other of said weighboxes, according to the position ofsaid plate. One of the journals 20 of the valve-plate 15 has fixedthereto outside of the hopper a double-armed lever 16,whose respectivearms at their rounded extremities are adapted to be impinged upon therounded under sides of the inner end portions of the scale-beams 1a 14,as hereinafter described.

The weigh-boxes are suspended, respectively, from scale-beams l414,which are intermediately fulcrumed at 14 on supports 14, which dependfrom a suitable support Z, from which the hopper 13 is also supported.The two weigh boxes, with their adjuncts and sack or package holders,are duplicates of each other, and a description of one will equallyapply to both, similar reference numerals or characters being applied tocorresponding parts upon both.

The weigh-box is formed with a contracted discharge at its lowerend,which is normally closed by a valve 10, carried by a rock-shaft S,which is journaled in depending lugs of a casting 7, secured to thebottom of the weighbox, and which is provided with cranks 9. The valve10 is normally held in closed position by means of a latch 11, which ispivoted at 6 to the casting 7 and whose horizontal arm 11 extends abovethe horizontal arm 5 of a knee-bolt 5, which depends from a stationarycasing Y. The bottom of the casing Y underneath each weigh-box is formedwith an opening Y, and secured to the casing around each of saidopenings is a centrallyopen casting 23. Secured in said casting is adepending pipe 28, which carries a suitable package-holder. Thispackage-holder 30 consists principally of two expanding sleeves 30,which surround the lower portion of the discharge-pipe 28. This casingYis continuous underneath the weigh-boxes, the discharge or lower endportions of which project thereinto through openings in the upper wallthereof. The openings Y of the weigh-boxes are opposite these openingsthrough which project the weigh-boxes. In this way the valves and valvemechanism controlling the discharges of the weigh-boxes are entirelyinclosed and protected from being tampered with, the cement is guardedfrom drafts while being transferred from weigh-box to package, a supportis pro vided for the knee-bolt 5, any cement which may sift out while inprocess of such transferral is preserved for future collection, andshould such siftings of cement become so great as to clog or interferewith the operation of the device it may be readily blown through and outof such casing and collected at one end thereof.

The operation of the machine is as follows: Supposing the valve-plate tobe in the position indicated in Figs. 1 and 2, the material delivered tothe hopper 13 passes through the discharge branch or leg 19 into theweigh-box 2 and onto the plate 10. hen sufficient material has beendelivered into the said box to overcome the Weight on the scale-beam 14,(which has been previously set at the desired point,) said scale-beam isdepressed, thereby depressing the adjacent arm of the lever 16 andthrowing the valve-plate 15 over to the other side of the hopper,thereby causing the material to be discharged through the branch or leg19 into the hopper 2. The lowering of the weigh-box 2 by reason of theweight of the product contained therein causes the arm 11 of the latch11 to strike the arm 5 of the knee-bolt 5, thereby releasing the saidlatch. The valve 10 then opens by gravity and discharges the contents ofthe box through the casing Y and opening Y into the pipe 28 and thenceinto the sack or package which is supported by the package-holder 30, asabove described. In the meantime the weigh-box 2 has received its loadand a similar operation takes place with that box. After operation thevalves 10 are closed by manual operation of the cranks 9. This operationcontinues so long as material is delivered to the hopper 13, the work ofthe at tendant being confined to closing the valves 10 and to placingand removing the sacks or packages.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

In Weighing apparatus, the combination oi. the scale-beams, theweigh-boxes suspended therefrom,the continuous casing orinclosure,having openings in its upper wall through which project the lower endportions of said boxes, and openings in its lower wall opposite saidfirst-named openings,the hopper having the branched discharge into saidweighboxes, means for controlling the discharge of said hopper, thevalve-plates controlling the discharge of said weigh-boxes, the catchesfor said plates, means whereby said catches are released upon descent ofsaid beams and weigh-boxes, and packaging apparatus communicating withsaid last-named openings of said inclosure, substantially as specified.

In testimony whereof I aflix my signature in presence of two witnesses.

DAVID S: COOK.

Witnesses:

J AS. M. WINTERSMITH, JNo. G. DAVIDSON.

